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Class Information
Number: 114/57
Name: Ships > Displacement-type hull (e.g., specific aftbody, etc.) > Screw propeller type
Description: Inventions in the exterior form of vessels propelled by screw-propellers.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7383782 |
Watercraft |
Jun. 10, 2008 |
| 5711239 |
Propeller configuration for sinusoidal waterline ships |
Jan. 27, 1998 |
| 5141456 |
Water craft with guide fins |
Aug. 25, 1992 |
| 5127857 |
Watercraft propulsion system |
Jul. 7, 1992 |
| 5108321 |
Motor boat with auxiliary motor |
Apr. 28, 1992 |
| 4979455 |
Control surfaces |
Dec. 25, 1990 |
| 4959032 |
Water craft with guide fins |
Sep. 25, 1990 |
| 4887540 |
Watercraft propulsion system |
Dec. 19, 1989 |
| 4843989 |
Ship's hull for small vessels and high speeds |
Jul. 4, 1989 |
| 4819576 |
Hydrofoil - submarine vessel system |
Apr. 11, 1989 |
| 4785756 |
Vessel having propeller arranged on vertical hull center plane |
Nov. 22, 1988 |
| 4784074 |
Dual walkway - central boat transom |
Nov. 15, 1988 |
| 4781141 |
Personal water craft with improved hull design |
Nov. 1, 1988 |
| 4779551 |
Vessel having laterally offset propeller |
Oct. 25, 1988 |
| 4756265 |
High speed boat lifting structures |
Jul. 12, 1988 |
| 4732101 |
Stern apron for ice breakers |
Mar. 22, 1988 |
| 4631036 |
Stern fin for single-prop ship |
Dec. 23, 1986 |
| 4592299 |
Ship's-vessel's rudder with reduced drag effected factors |
Jun. 3, 1986 |
| 4550673 |
Hull construction for seagoing vessels |
Nov. 5, 1985 |
| 4538537 |
Ship hull for single-screw vessel, twin-screw vessel with two aftbodies and catamaran |
Sep. 3, 1985 |
| 4406630 |
Fishing boat for use with electrically powered fishing motors |
Sep. 27, 1983 |
| 4363630 |
Ship's hull with a helical channel ahead of each propeller and method of establishing the shape of the same |
Dec. 14, 1982 |
| 4359010 |
Means for decreasing wave resistance on marine vessels |
Nov. 16, 1982 |
| 4174672 |
Ship's propeller shaft sealing assembly |
Nov. 20, 1979 |
| 3991697 |
Twin-screw vessel |
Nov. 16, 1976 |
| 3991696 |
Hull of a small-sized ship |
Nov. 16, 1976 |
| 3983829 |
Ships' stern construction |
Oct. 5, 1976 |
| 3930456 |
Ship's afterbody, especially for a full-form ship fitted with more than one propeller |
Jan. 6, 1976 |
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